feat: calendar eco

backend/services/calendar_sync.py

@@ -3,10 +3,12 @@ Unified calendar sync.
   1. FF live JSON (nfs.faireconomy.media) → this week + next week  (actual values, precise)
   2. FF HTML scraper → weeks 3..N ahead                            (upcoming forecasts)
   3. Fallback for weeks 3..N, only if step 2 got blocked (ForexFactory now 403s the
-     scraper — likely Cloudflare): Trading Economics first (services.te_calendar, free
-     tier, no card required), then FMP (services.fmp_calendar, free tier doesn't include
-     the economic_calendar endpoint — needs their paid Starter plan) — whichever has a
-     configured key and actually returns events.
+     scraper — likely Cloudflare): Trading Economics first (services.te_calendar), then
+     FMP (services.fmp_calendar) — whichever has a configured key and actually returns
+     events. NOTE: neither is actually free for this endpoint — TE's calendar needs
+     their $149/mo base plan, FMP's free tier excludes economic_calendar (needs their
+     $14.99/mo Starter). Kept wired for whichever the user ends up paying for; look for
+     a cheaper source before recommending either.
 Called by the background loop in main.py and manually via POST /api/eco/calendar-sync.
 """
 import logging

backend/services/ff_calendar.py

@@ -435,18 +435,52 @@ def _parse_impact(impact_td) -> str:
     return "low"
 
 
+def _fetch_via_flaresolverr(url: str) -> Optional[str]:
+    """
+    Fetch a page through FlareSolverr (a headless-browser proxy that solves Cloudflare's
+    JS challenge) instead of a plain HTTP client. FF started 403'ing our direct requests
+    — the response is Cloudflare's "Just a moment..." interstitial, which no amount of
+    header/cookie spoofing can pass (confirmed: replaying a real logged-in session's
+    cf_clearance cookie from a different IP still 403s — it's IP-bound). FlareSolverr runs
+    as a sibling container (see deploy/docker-compose.yml) and is reached over the internal
+    docker network; not configured (e.g. local dev without that container) → returns None
+    so the caller falls back to the direct httpx path unchanged.
+    """
+    import os
+    base = os.environ.get("FLARESOLVERR_URL", "http://flaresolverr:8191/v1")
+    try:
+        resp = httpx.post(
+            base,
+            json={"cmd": "request.get", "url": url, "maxTimeout": 60000},
+            timeout=70,
+        )
+        resp.raise_for_status()
+        data = resp.json()
+        if data.get("status") != "ok":
+            print(f"[FF scrape] FlareSolverr error for {url}: {data.get('message')}", flush=True)
+            return None
+        return data.get("solution", {}).get("response")
+    except Exception as e:
+        print(f"[FF scrape] FlareSolverr unavailable ({e}) — falling back to direct fetch", flush=True)
+        return None
+
+
 def _scrape_week(client: httpx.Client, monday: date) -> list[tuple]:
     """Fetch and parse one week of FF calendar. Returns list of row tuples."""
     url = _week_url(monday)
     print(f"[FF scrape] GET {url}", flush=True)
-    try:
-        resp = client.get(url, timeout=20)
-        resp.raise_for_status()
-    except Exception as e:
-        print(f"[FF scrape] fetch error {url}: {e}", flush=True)
-        return []
 
-    soup = BeautifulSoup(resp.text, "lxml")
+    html = _fetch_via_flaresolverr(url)
+    if html is None:
+        try:
+            resp = client.get(url, timeout=20)
+            resp.raise_for_status()
+            html = resp.text
+        except Exception as e:
+            print(f"[FF scrape] fetch error {url}: {e}", flush=True)
+            return []
+
+    soup = BeautifulSoup(html, "lxml")
     table = soup.find("table", class_="calendar__table")
     if not table:
         # Try alternate selector (FF occasionally restructures)

backend/services/te_calendar.py

@@ -1,6 +1,10 @@
 """
 Trading Economics calendar service — upcoming events with consensus forecasts.
-Free API: https://tradingeconomics.com/api/login (500 calls/month)
+NOTE: confirmed (2026-07) that the calendar endpoint is NOT actually free despite the
+signup page — their base paid plan is $149/month. Kept wired in case a key is ever
+available, but don't recommend this as a free option (same dead end as FMP, whose
+free tier also excludes the economic_calendar endpoint — needs their $14.99/mo Starter).
+Signup: https://tradingeconomics.com/api/login
 Endpoint: GET https://api.tradingeconomics.com/calendar/country/united%20states?c=KEY
 """
 import logging